The amount of virtual Shared memory that the database server allocates for a sort depends on the number of rows to be sorted and the size of the row, and whether PDQPIORIDY is set for the server.
数据库服务器分配给排序的虚拟共享内存的数量取决于要进行排序的行数、每一行的大小以及是否为服务器设置了PDQPIORIDY。
Increments the row pointer for the next virtual user or, if the end of the file is reached, go back to the beginning of the file and reset the pointer to 1.
为下一位虚拟用户增加行指针或者，如果已经到达文件的末尾，就回到这个文件的起始，使指针重新回到1。
To implement a fake fact query subject, either create a one row table in the database or use a virtual table such as SYSDUMMY1 for DB2 or Dual for Oracle.
要实现伪事实查询主题，就要在数据库中创建一个一行的表格，或者使用虚拟表，例如SYSDUMMY1在DB 2中使用SYSDUMMY1，或者在Oracle中使用Dual。
But what's kept people swiping and clicking to ensure each row of blocks stays aligned and disappears into the virtual ether since its development in 1984 Soviet Russia?
但自从这款游戏于1984年在前苏联诞生以来，究竟是什么让人们移动手指，不停地点击，以确保每一行方块保持一致，然后消失在虚拟以太之中？
Each row in the chart represents an individual virtual user.
图表中的每一列都表示个别的虚拟使用者。
When you are implementing virtual mode, you will need to track when a new row is needed in the data model and when to rollback the addition of the new row.
在实现虚拟模式时，您需要跟踪数据模型中何时需要新行，以及何时回滚新行的添加操作。
When you are implementing virtual mode, you will need to track when a new row is needed in the data model and when to rollback the addition of the new row.
在实现虚拟模式时，您需要跟踪数据模型中何时需要新行，以及何时回滚新行的添加操作。
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